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Primitive neuroectodermal tumor
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In children, the central nervous system tumors are exceeded in incidence only by leukemia and are more common than any of the other malignancies of childhood. Childhood central nervous system tumors encompass a range of histologic varieties from the histologically benignappearing pilocytic astrocytoma to the extremely malignant-appearing glioblastoma multiforme and the undifferentiated primitive neuroectodermal tumors. Similarly, the biologic behavior of childhood brain tumors varies not only according to histology but also with location of the tumor and age.
518p
vimeyers
29-05-2024
2
2
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Primitive neuroectodermal tumors are extremely rare and highly aggressive malignant small round cell tumors that arise from the primitive nerve cells of the nervous system or outside it. These tumors share similar histology, immunohistologic characteristics, and cytogenetics with Ewing’s sarcoma.
6p
vitiki
30-01-2024
4
2
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Ewing sarcoma is a rare tumor that occurs commonly in the long bones of children or adolescents that can also arise in soft tissues including the extremities, retroperitoneum, chest wall, and rarely in the liver as primary sites.
4p
vialabama2711
21-09-2020
17
1
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The SK-PN-DW cell line was established in 1979 and is commercially available. Despite the use of this cell line as an in vitro model for functional and therapeutic studies of malignant primitive neuroectodermal tumor (PNET), there is a lack of complete information about the genetic alterations that are present at the cytogenetic level.
12p
vikuala271
13-06-2020
12
0
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Our previous studies demonstrated that growth and migration of medulloblastoma (MB), the most common malignant brain tumor in children, are stimulated by 17β-estradiol. The growth stimulating effects of estrogens are mediated through ERβ and insulin-like growth factor 1 signaling to inhibit caspase 3 activity and reduce tumor cell apoptosis.
11p
vimax2711
30-03-2020
16
2
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(bq) part 2 book "practical differential diagnosis in surgical neuropathology" presentation of content: meningioma, meningeal sarcoma, hemangioblastoma, central nervous system primitive neuroectodermal tumors, pineal region tumors, pituitary gland lesions, pituitary gland lesions, pituitary gland lesions,...
92p
thangnamvoiva23
06-10-2016
28
5
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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Peripheral primitive neuroectodermal tumor of the urinary bladder in an Arab woman with history of squamous cell carcinoma: a case report
4p
thulanh30
19-12-2011
49
3
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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Uterine primitive neuroectodermal tumor with adenosarcoma: a case report...
4p
thulanh28
15-12-2011
34
2
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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài:Primary vaginal Ewing’s sarcoma or primitive neuroectodermal tumor in a 17-year-old woman: a case report
5p
thulanh28
15-12-2011
55
2
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Xếp lạo theo giải phẫu bệnh A.Các u của nơron thần kinh -U nguyên bào thần kinh khứu giác, xúc giác B. Các u tế bào thần kinh đệm( gliomas) U tế bào hình sao( astrocytoma) -U tế bào hình sao ít nhành( oligodendroglioma) -U màng não thất( ependymoma) -U đám rối mạch mạc (choroid plexus tumors) -U tế bào thần kinh đệm hỗn hợp C. Các U tế bào thần kinh và thần kinh đệm hỗn hợp( Mixed neuronal-glial tumors) -Ganglioglioma, gangliogliocytoma -Central neurocytoma -Dysembryoplastic neuroepithelial tumors -Desmoplastic ìnantile ganglioglioma D.
78p
truongthiuyen12
09-07-2011
252
26
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